The Impact of Colonization by Multi Drug Resistant Bacteria on Graft Survival, Risk of Infection, and Mortality in Recipients of Solid Organ Transplant: Systematic Review and Meta-analysis.

BACKGROUND: The Global increase in colonization by multidrug-resistant (MDR) bacteria poses a significant concern. The precise impact of MDR colonization in solid organ transplant recipients (SOTR) remains not well established. OBJECTIVES: Assess the impact of MDR colonization on SOTR's mortality, infection, or graft-loss. METHODS: . DATA SOURCE: Data from PROSPERO, OVID Medline, Ovid EMBASE, Wiley Cochrane Library, ProQuest Dissertations, Theses Global, and SCOPUS, were systematically reviewed spanning from inception until March 20, 2023. The study protocol was registered with PROSPERO (CRD42022290011) and followed the PRISMA guidelines. STUDY ELIGIBILITY CRITERIA, PARTICIPANTS, INTERVENTIONS, AND ASSESSMENT OF RISK OF BIAS: Cohorts and case-control studies that reported on adult SOTR colonized by Methicillin-resistant Staphylococcus-aureus (MRSA), Vancomycin-resistant Enterococci (VRE), Extended-spectrum beta-lactamase (ESBL) or carbapenem-resistant Enterobacteriaceae (CRE), or MDR-Pseudomonas, and compared to non-colonized, were included. Two reviewers assessed eligibility, conducted risk of bias evaluation using the Newcastle-Ottawa scale, and rated certainty of evidence using the GRADE approach. METHODS OF DATA SYNTHESIS: We employed RevMan for a meta-analysis using random-effects models to compute pooled odds-ratios (OR) and 95% confidence-intervals (CI). Statistical heterogeneity was determined using the I2 statistic. RESULTS: 15,202 SOTR (33 cohort, 6 case-control studies) were included, where Liver transplant and VRE colonization (25 and 14 studies) were predominant. MDR colonization significantly increased post-transplant one-year mortality (OR= 2.35, 95%CI 1.63-3.38) and mixed-infections (OR=10.74, 95%CI 7.56-12.26) across transplant types (p<0.001 and I2= 58%), but no detected impact on graft-loss (p=0.41, I2= 0%). Subgroup analysis indicated a higher association between CRE or ESBL colonization with outcomes (CRE: death OR=3.94, mixed-infections OR=24.8; ESBL: mixed-infections OR=10.3, no mortality data) compared to MRSA (Death: OR=2.25; Mixed-infection: OR=7.75) or VRE colonization (Death: p=0.20, Mixed-infections: OR=5.71). CONCLUSIONS: MDR colonization in SOTR, particularly CRE, is associated with increased mortality. Despite the low certainty of evidence, actions for preventing MDR colonization in transplant candidates are warranted.

Early-life external exposome in children 2 to 5 years old in Colombia.

Exposome studies are advancing in high-income countries to understand how multiple environmental exposures impact health. However, there is a significant research gap in low- and middle-income and tropical countries. We aimed to describe the spatiotemporal variation of the external exposome, its correlation structure between and within exposure groups, and its dimensionality. A one-year follow-up cohort study of 506 children under 5 in two cities in Colombia was conducted to evaluate asthma, acute respiratory infections, and DNA damage. We examined 48 environmental exposures during pregnancy and 168 during childhood in eight exposure groups, including atmospheric pollutants, natural spaces, meteorology, built environment, traffic, indoor exposure, and socioeconomic capital. The exposome was estimated using geographic information systems, remote sensing, spatiotemporal modeling, and questionnaires. The median age of children at study entry was 3.7 years (interquartile range: 2.9-4.3). Air pollution and natural space exposure decreased from pregnancy to childhood, while socioeconomic capital increased. The highest median correlations within exposure groups were observed in meteorology (r = 0.85), traffic (r = 0.83), and atmospheric pollutants (r = 0.64). Important correlations between variables from different exposure groups were found, such as atmospheric pollutants and meteorology (r = 0.76), natural spaces (r = -0.34), and the built environment (r = 0.53). Twenty principal components explained 70%, and 57 explained 95% of the total variance in the childhood exposome. Our findings show that there is an important spatiotemporal variation in the exposome of children under 5. This is the first characterization of the external exposome in urban areas of Latin America and highlights its complexity, but also the need to better characterize and understand the exposome in order to optimize its analysis and applications in local interventions aimed at improving the health conditions and well-being of the child population and contributing to environmental health decision-making.

Association of PADI2 and PADI4 polymorphisms in COVID-19 host severity and non-survival.

Background: Enzymes of the peptidylarginine deiminase family (PADs) play a relevant role in the pathogenesis of COVID-19. However, the association of single nucleotide polymorphisms (SNPs) in their genes with COVID-19 severity and death is unknown. Methodology: We included 1045 patients who were diagnosed with COVID-19 between October 2020 and December 2021. All subjects were genotyped for PADI2 (rs1005753 and rs2235926) and PADI4 (rs11203366, rs11203367, and rs874881) SNPs by TaqMan assays and their associations with disease severity, death, and inflammatory biomarkers were evaluated. Results: 291 patients presented had severe COVID-19 according to PaO2/FiO2, and 393 had a non-survival outcome. Carriers of the rs1005753 G/G genotype in the PADI2 gene presented susceptibility for severe COVID-19, while the heterozygous carriers in rs11203366, rs11203367, and rs874881 of the PADI4 gene showed risk of death. The GTACC haplotype in PADI2-PADI4 was associated with susceptibility to severe COVID-19, while the GCACC haplotype was a protective factor. The GCGTG haplotype was associated with severe COVID-19 but as a protective haplotype for death. Finally, the GTACC haplotype was associated with platelet-to-lymphocyte ratio (PLR), the GCACC haplotype with neutrophil-to-hemoglobin and lymphocyte and the GCGTG haplotype as a protective factor for the elevation of procalcitonin, D-dimer, CRP, LCRP, NHL, SII, NLR, and PLR. Conclusions: Our results suggest that the haplotypic combination of GTACC and some individual genotypes of PADI2 and PADI4 contribute to the subjects' susceptibility for severity and death by COVID-19.

Genipin crosslinking promotes biomechanical reinforcement and pro-regenerative macrophage polarization in bioartificial tubular substitutes.

Traumatic nerve injuries are nowadays a significant clinical challenge and new substitutes with adequate biological and mechanical properties are in need. In this context, fibrin-agarose hydrogels (FA) have shown the possibility to generate tubular scaffolds with promising results for nerve repair. However, to be clinically viable, these scaffolds need to possess enhanced mechanical properties. In this line, genipin (GP) crosslinking has demonstrated to improve biomechanical properties with good biological properties compared to other crosslinkers. In this study, we evaluated the impact of different GP concentrations (0.05, 0.1 and 0.2% (m/v)) and reaction times (6, 12, 24, 72 h) on bioartificial nerve substitutes (BNS) consisting of nanostructured FA scaffolds. First, crosslinked BNS were studied histologically, ultrastructurally and biomechanically and then, its biocompatibility and immunomodulatory effects were ex vivo assessed with a macrophage cell line. Results showed that GP was able to improve the biomechanical resistance of BNS, which were dependent on both the GP treatment time and concentration without altering the structure. Moreover, biocompatibility analyses on macrophages confirmed high cell viability and a minimal reduction of their metabolic activity by WST-1. In addition, GP-crosslinked BNS effectively directed macrophage polarization from a pro-inflammatory (M1) towards a pro-regenerative (M2) phenotype, which was in line with the cytokines release profile. In conclusion, this study considers time and dose-dependent effects of GP in FA substitutes which exhibited increased biomechanical properties while reducing immunogenicity and promoting pro-regenerative macrophage shift. These tubular substitutes could be useful for nerve application or even other tissue engineering applications such as urethra.

Prefrontal activity during IOWA Gambling Task in young adult women.

This study aims to investigate the relationships between personality traits of impulsivity, using the UPPS-P Impulsive Behaviour Scales shortened version, and prefrontal cortex (PFC) activity during the IOWA Gambling Task (IGT) in young adult women. The study included a sample of 83 young, healthy females (19.8 ± 1.4 years), who voluntarily took part in the study. Repeated measures analysis during the IGT revealed a significant increase in HbO (all p <.001; ηp2 >.31) and a decrease in Hbr (all p <.003; ηp2 >.08) in all prefrontal quadrants. This increase in oxygenation occurs primarily during the choice period under ambiguity (r =.23; p =.039). Additionally, there was a significant linear decrease in selecting the decks associated with a high frequency of losses (p <.001), while the favorable deck with low losses showed a linear increase (F = 12.96; p <.001). Notably, discrepancies were found between UPPS-P and IGT impulsivity ratings. The Lack of Perseverance and Lack of Premeditation scales from the UPPS-P were identified as significant predictors of HbO levels, mainly in the two quadrants of the left hemisphere's, lateral (adjusted R2 =.23; p <.001; f2 =.34) and rostral (adjusted R2 =.13; p <.002; f2 =.17). These findings suggest that young adult women predominantly adopt a punishment-avoidance strategy during IGT, exhibiting increased activation in the left hemisphere, especially during the task's initial phase characterized by ambiguity.

Digital Twin Platform for Water Treatment Plants Using Microservices Architecture.

The effects of climate change and the rapid growth of societies often lead to water scarcity and inadequate water quality, resulting in a significant number of diseases. The digitalization of infrastructure and the use of Digital Twins are presented as alternatives for optimizing resources and the necessary infrastructure in the water cycle. This paper presents a framework for the development of a Digital Twin platform for a wastewater treatment plant, based on a microservices architecture which optimized its design for edge computing implementation. The platform aims to optimize the operation and maintenance processes of the plant's systems, by employing machine learning techniques, process modeling and simulation, as well as leveraging the information contained in BIM models to support decision-making.

The impact of tRNA modifications on translation in cancer: identifying novel therapeutic avenues.

Recent advancements have illuminated the critical role of RNA modifications in post-transcriptional regulation, shaping the landscape of gene expression. This review explores how tRNA modifications emerge as critical players, fine-tuning functionalities that not only maintain the fidelity of protein synthesis but also dictate gene expression and translation profiles. Highlighting their dysregulation as a common denominator in various cancers, we systematically investigate the intersection of both cytosolic and mitochondrial tRNA modifications with cancer biology. These modifications impact key processes such as cell proliferation, tumorigenesis, migration, metastasis, bioenergetics and the modulation of the tumor immune microenvironment. The recurrence of altered tRNA modification patterns across different cancer types underscores their significance in cancer development, proposing them as potential biomarkers and as actionable targets to disrupt tumorigenic processes, offering new avenues for precision medicine in the battle against cancer.

Shared and Compartment-Specific Processes in Nucleus Pulposus and Annulus Fibrosus During Intervertebral Disc Degeneration.

Elucidating how cell populations promote onset and progression of intervertebral disc degeneration (IDD) has the potential to enable more precise therapeutic targeting of cells and mechanisms. Single-cell RNA-sequencing (scRNA-seq) is performed on surgically separated annulus fibrosus (AF) (19,978; 26,983 cells) and nucleus pulposus (NP) (20,884; 24,489 cells) from healthy and diseased human intervertebral discs (IVD). In both tissue types, depletion of cell subsets involved in maintenance of healthy IVD is observed, specifically the immature cell subsets - fibroblast progenitors and stem cells - indicative of an impairment of normal tissue self-renewal. Tissue-specific changes are also identified. In NP, several fibrotic populations are increased in degenerated IVD, indicating tissue-remodeling. In degenerated AF, a novel disease-associated subset is identified, which expresses disease-promoting genes. It is associated with pathogenic biological processes and the main gene regulatory networks include thrombospondin signaling and FOXO1 transcription factor. In NP and AF cells thrombospondin protein promoted expression of genes associated with TGFß/fibrosis signaling, angiogenesis, and nervous system development. The data reveal new insights of both shared and tissue-specific changes in specific cell populations in AF and NP during IVD degeneration. These identified mechanisms and molecules are novel and more precise targets for IDD prevention and treatment.

An integrative analysis of potential mechanisms of reduced positive affect in daily life in depression: an ESM study.

Decreased levels of positive affect (PA) are a hallmark of depression. Current models propose as potential main mechanisms a dysfunctional use of emotion regulation (ER) strategies (i.e. dampening, positive rumination), and a maladaptive activation of pro-hedonic goals. However, the role of these mechanisms in PA in daily life remains understudied. We used a 10-day ESM design to assess how these mechanisms influence each other and contribute to depressive symptomatology-related low momentary PA in 139 individuals. Higher depressive symptoms were associated with lower PA, pro-hedonic goals, more frequent use of positive rumination, and higher use of dampening. Further, experiencing higher levels of PA predicted lower following time point use of dampening in individuals with higher symptoms. Finally, using positive rumination was more beneficial (i.e. predicted higher PA increases one moment later) for individuals with higher symptomatology. Our findings suggest that moment-to-moment changes in PA daily life are affected by, and have an effect on, both pro-hedonic goals and the use of dampening and positive rumination, highlighting specific cognitive-affective mechanisms that should be considered when designing interventions aimed at improving low PA characterising depression symptomatology.

Early Family Experiences, Drug Use, and Psychosocial Adjustment across the Life Span: Is Parental Strictness Always a Protective Factor?

Objective: This study analyzes whether parental strictness, which is shared by authoritative parenting (strictness and warmth) and authoritarian parenting (strictness without warmth) styles, always acts as a main protective factor against drug use and psychosocial maladjustment in children. This conclusion has already been stated in numerous classic studies, though emergent research suggests that there are benefits to parental warmth regardless of whether strictness is present or not. Method: Sample were 2,095 Spanish participants (1,227 females, 58.6%), 581 adolescent children (aged 12-18 years, 27.7%) and 1,514 adult children (72.3%). The measures were the main parenting style dimensions (warmth and strictness), drug use, and a set of indicators of psychosocial adjustment. A 4 × 2 × 4 MANOVA was applied for all outcomes with parenting style, sex, and age as independent variables. Results: Indulgent parenting (warmth without strictness) was related to less drug use than parenting without warmth (authoritarian and neglectful). Additionally, indulgent and authoritative parenting styles were related to better scores on psychosocial adjustment than authoritarian and neglectful styles, although the indulgent parenting was the only style related to the optimal scores being equal or even more effective than the authoritative style. Conclusion: Contrary to classical studies, present findings suggest that it is the parental warmth instead of the parental strictness that seems to be effective in protecting against drug use and psychosocial maladjustment.

Objetivo: En este estudio se analiza si, como asumen numerosos estudios clásicos, el componente de severidad que comparte el estilo parental autorizativo (severidad y afecto) con el estilo autoritario (severidad sin afecto) actúan siempre como el principal factor protector del consumo de drogas y el desajuste psicosocial de los hijos. Sin embargo, la investigación emergente sugiere los beneficios del afecto parental independientemente de la severidad. Método: Los participantes fueron 2,095 hijos españoles (1,227 mujeres, 58.6%), 581 adolescentes (de 12 a 18 años, 27.7%) y 1,514 adultos (72.3%). Las medidas fueron de las principales dimensiones del estilo parental (afecto y severidad), del consumo de drogas y un conjunto de indicadores del ajuste psicosocial. Se aplicó un MANOVA 4 × 2 × 4 con todos los criterios evaluados analizando el estilo parental, el sexo y la edad como variables independientes. Resultados: El estilo indulgente (afecto sin severidad) se relacionó con un menor consumo de drogas que los estilos sin afecto (autoritario y negligente). Además, los estilos indulgente y autorizativo se relacionaron con mejores puntuaciones en ajuste psicosocial, aunque el indulgente fue el único estilo relacionado con las puntuaciones óptimas siendo igual o incluso más eficaz que el estilo autorizativo. Conclusión: A diferencia de los estudios clásicos, los presentes resultados sugieren que el afecto parental, en vez de la severidad, parece ser eficaz como protección frente al consumo de drogas y el desajuste psicosocial.

Convergence of coronary artery disease genes onto endothelial cell programs.

Linking variants from genome-wide association studies (GWAS) to underlying mechanisms of disease remains a challenge1-3. For some diseases, a successful strategy has been to look for cases in which multiple GWAS loci contain genes that act in the same biological pathway1-6. However, our knowledge of which genes act in which pathways is incomplete, particularly for cell-type-specific pathways or understudied genes. Here we introduce a method to connect GWAS variants to functions. This method links variants to genes using epigenomics data, links genes to pathways de novo using Perturb-seq and integrates these data to identify convergence of GWAS loci onto pathways. We apply this approach to study the role of endothelial cells in genetic risk for coronary artery disease (CAD), and discover 43 CAD GWAS signals that converge on the cerebral cavernous malformation (CCM) signalling pathway. Two regulators of this pathway, CCM2 and TLNRD1, are each linked to a CAD risk variant, regulate other CAD risk genes and affect atheroprotective processes in endothelial cells. These results suggest a model whereby CAD risk is driven in part by the convergence of causal genes onto a particular transcriptional pathway in endothelial cells. They highlight shared genes between common and rare vascular diseases (CAD and CCM), and identify TLNRD1 as a new, previously uncharacterized member of the CCM signalling pathway. This approach will be widely useful for linking variants to functions for other common polygenic diseases.

Early Family Experiences, Drug Use, and Psychosocial Adjustment across the Life Span: Is Parental Strictness Always a Protective Factor? / [Las experiencias tempranas en la familia, el uso de drogas y el ajuste psicosocial: ¿es siempre la severidad parental un factor de protección?]

Objective: This study analyzes whether parental strictness, which is shared by authoritative parenting (strictness and warmth) and authoritarian parenting (strictness without warmth) styles, always acts as a main protective factor against drug use and psychosocial maladjustment in children. This conclusion has already been stated in numerous classic studies, though emergent research suggests that there are benefits to parental warmth regardless of whether strictness is present or not. Method: Sample were 2,095 Spanish participants (1,227 females, 58.6%), 581 adolescent children (aged 12-18 years, 27.7%) and 1,514 adult children (72.3%). The measures were the main parenting style dimensions (warmth and strictness), drug use, and a set of indicators of psychosocial adjustment. A 4 × 2 × 4 MANOVA was applied for all outcomes with parenting style, sex, and age as independent variables. Results: Indulgent parenting (warmth without strictness) was related to less drug use than parenting without warmth (authoritarian and neglectful). Additionally, indulgent and authoritative parenting styles were related to better scores on psychosocial adjustment than authoritarian and neglectful styles, although the indulgent parenting was the only style related to the optimal scores being equal or even more effective than the authoritative style. Conclusion: Contrary to classical studies, present findings suggest that it is the parental warmth instead of the parental strictness that seems to be effective in protecting against drug use and psychosocial maladjustment.(AU)

Objetivo: En este estudio se analiza si, como asumen numerosos estudios clásicos, el componente de severidad que comparte el estilo parental autorizativo (severidad y afecto) con el estilo autoritario (severidad sin afecto) actúan siempre como el principal factor protector del consumo de drogas y el desajuste psicosocial de los hijos. Sin embargo, la investigación emergente sugiere los beneficios del afecto parental independientemente de la severidad. Método: Los participantes fueron 2,095 hijos españoles (1,227 mujeres, 58.6%), 581 adolescentes (de 12 a 18 años, 27.7%) y 1,514 adultos (72.3%). Las medidas fueron de las principales dimensiones del estilo parental (afecto y severidad), del consumo de drogas y un conjunto de indicadores del ajuste psicosocial. Se aplicó un MANOVA 4 × 2 × 4 con todos los criterios evaluados analizando el estilo parental, el sexo y la edad como variables independientes. Resultados: El estilo indulgente (afecto sin severidad) se relacionó con un menor consumo de drogas que los estilos sin afecto (autoritario y negligente). Además, los estilos indulgente y autorizativo se relacionaron con mejores puntuaciones en ajuste psicosocial, aunque el indulgente fue el único estilo relacionado con las puntuaciones óptimas siendo igual o incluso más eficaz que el estilo autorizativo. Conclusión: A diferencia de los estudios clásicos, los presentes resultados sugieren que el afecto parental, en vez de la severidad, parece ser eficaz como protección frente al consumo de drogas y el desajuste psicosocial.(AU)

Do We Know Enough about Negative Parenting? Recent Evidence on Parenting Styles and Child Maladjustment / ¿Sabemos suficiente sobre el estilo parental negativo? Pruebas recientes sobre los estilos parentales y la inadaptación de los hijos

Background: There are serious doubts as to whether parental strictness, one of the two main dimensions of parental style, can be a negative or positive component of parenting in traditional societies. Method: Parenting style (authoritarian, authoritative, indulgent, and neglectful) was captured from strictness and warmth dimensions and child maladjustment was assessed with problems of self-esteem and self-concept (academic, social, emotional, family, and physical) studied worldwide. The sample was composed of 1,282 Chinese participants (676 females, 52.7%), 581 adolescent children (age ranging from 12-18 years, 45.3%), and 701 young adult children (age ranging from 19-31 years, 54.7%). A 4 × 2 × 2 factorial MANOVA was applied for all outcomes using parenting style, sex, and age as the independent variables. Results: The statistical analysis plainly indicated that authoritarian (strictness but not warmth) and neglectful (neither strictness nor warmth) parenting styles were associated with higher maladjustment in terms of lower self-esteem and self-concept scores. Indulgent (not strictness but warmth) and authoritative (strictness and warmth) parenting were positive parenting styles acting as protective factors against self-esteem and self-concept problems. The authoritative style (strictness and warmth), but not the authoritarian parenting style (strictness but not warmth), was the most positive parenting for academic self-concept, but only among adolescents. Conclusions: Interestingly, completely contrary to expectations that authoritarian parenting might be a positive parenting in traditional societies, present findings suggest that the authoritarian style might be a negative parenting related to child maladjustment. (AU)

Antecedentes: Existen serias dudas sobre si la severidad parental, una de las dos dimensiones principales del estilo parental, puede ser un componente negativo o positivo de la socialización en las sociedades tradicionales. Método: El estilo parental (autoritario, autorizativo, indulgente y negligente) se evaluó a partir de las dimensiones de severidad y afecto, y el desajuste de los hijos por medio de problemas de autoestima y autoconcepto (académicos, sociales, emocionales, familiares y físicos) estudiados en todo el mundo. La muestra estaba compuesta por 1,282 participantes chinos (676 mujeres, 52.7%), 581 hijos adolescentes (de 12 a 18 años, 45.3%) y 701 hijos adultos jóvenes (de 19 a 31 años, 54.7%). Se aplicó un MANOVA factorial 4 × 2 × 2 para todos los criterios utilizando el estilo parental, el sexo y la edad como variables independientes. Resultados: El análisis estadístico indicó claramente que el estilo parental autoritario (severidad sin afecto) y el negligente (ni severidad ni afecto) estaban relacionados con un mayor desajuste, como indican las menores puntuaciones de autoestima y autoconcepto. El estilo indulgente (afecto sin severidad) y el autorizativo (severidad y afecto) fueron estilos parentales positivos que actuaron como factores protectores contra los problemas de autoestima y autoconcepto. El estilo autorizativo (severidad y afecto), pero no el autoritario (severidad sin afecto), fue el más positivo para el autoconcepto académico, pero sólo en los adolescentes. Conclusiones: En contra de las expectativas de que el estilo parental autoritario podría ser positivo para la socialización en las sociedades tradicionales, los presentes resultados sugieren que la socialización autoritaria es un estilo parental negativo relacionado con problemas de desajuste de los hijos. (AU)

Muscle contraction time after caffeine intake is faster after 30 minutes than after 60 minutes.

BACKGROUND: This study aimed to determine the optimal time point, either 30 or 60 minutes, at which muscle reactivity to caffeine administration is highest. Unlike previous studies that focused on the nervous system response, we employed tensiomyography (TMG) to directly assess the effects of caffeine on muscle fibers. METHODS: TMG measurements were performed on the gastrocnemius medialis muscle of 42 male athletes who regularly consumed caffeine. Participants received a dose of 6 mg/kg body weight and TMG measurements were taken prior to caffeine intake, as well as 30 and 60 minutes afterward. RESULTS: Analysis of TMG parameters including time to contraction (Tc), time delay (Td), and maximal displacement (Dm) revealed that muscles exhibited faster contractions and greater stiffness at the 30-minute mark compared to both pre-caffeine intake and the 60-minute time point. Time exerted a significant main effect on Tc (F(2, 246) = 12.09, p < .001, ή2p = 0.09), Td (F(2, 246) = 3.39, p = .035, ή2p = 0.03), and Dm (F(2, 246) = 6.83, p = .001, ή2p = 0.05), while no significant effect of body side was observed. CONCLUSIONS: The findings indicate that muscle contraction time (Tc) and delay time (Td) are influenced by the time elapsed since caffeine ingestion, with the fastest responses occurring after 30 minutes. Additionally, a systemic effect of caffeine was observed, as there were no discernible differences in measurements between the two sides of the body. TMG proves to be an effective noninvasive method for assessing muscle responses following caffeine administration.

The Alternative Model of Personality Disorders: Assessment, Convergent and Discriminant Validity, and a Look to the Future.

The Alternative Model of Personality Disorders (AMPD) is a dimensional, empirically based diagnostic system developed to overcome the serious limitations of traditional categories. We review the mounting evidence on its convergent and discriminant validity, with an incursion into the less-studied ICD-11 system. In the literature, the AMPD's Pathological Trait Model (Criterion B) shows excellent convergence with normal personality traits, and it could be useful as an organizing framework for mental disorders. In contrast, Personality Functioning (Criterion A) cannot be distinguished from personality traits, lacks both discriminant and incremental validity, and has a shaky theoretical background. We offer some suggestions with a view to the future. These include removing Criterion A, using the real-life consequences of traits as indicators of severity, delving into the dynamic mechanisms underlying traits, and furthering the integration of currently disengaged psychological paradigms that can shape a sounder clinical science. Expected final online publication date for the Annual Review of Clinical Psychology, Volume 20 is May 2024. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Physicochemical changes in starch during the conversion of corn to tortilla in the traditional nixtamalization process associated with RS2.

This work aimed to study the changes in starch and isolated starch resulting from the conversion of corn to tortilla, focusing on the orthorhombic crystal structure and its association with resistant starch. Scanning electron microscopy images show whole, partially, and completely damaged starch granules in nixtamalized corn, masa, and tortillas. More importantly, whole isolated starch granules were found in nixtamal, masa, and tortillas. Transmission electron microscopy shows the presence of nanocrystals with orthorhombic structures in isolated starch. Some of them remained almost undamaged during the nixtamalization process. The X-ray patterns showed orthorhombic crystals in nixtamal, masa, and tortilla and their isolated starches. The RS increased from 2.61 to 5.31 % from corn to tortilla and from 2.52 to 5.61 % for isolated starches from corn and tortilla during the traditional nixtamalization process. The results suggest that the nanocrystals in corn to tortilla are part of RS2.

Rewarding Effects of the Hallucinogen 4-AcO-DMT Administration and Withdrawal in Rats: A Challenge to the Opponent-Process Theory.

According to the opponent-process theory of drug addiction, the intake of an addictive substance initiates two processes: a rapid primary process that results in the drug's rewarding effects, and a slower opponent process that leads to the aversive motivational state of drug aftereffects. This aversive state is integral in the desire, pursuit, and maintenance of drug use, potentially leading to dependence and addiction. However, current observational and experimental evidence suggests that the administration of a 5-hydroxytryptamine receptors-type 2A (5-HT2A) agonist, while capable of inducing a positive mental state in humans, may not generate the behavioral patterns typically associated with drugs of abuse. In this study, we found that administering the 5-HT2A agonist 4-Acetoxy-N,N-dimethyltryptamine fumarate (4-AcO-DMT) did not result in place preference in male rats compared to control saline administration 24 h later, after the drug has been cleared from the organism. However, in a modified place preference test where only the acute motivational effects of the drug were evaluated (excluding withdrawal), 4-AcO-DMT was found to be rewarding. Furthermore, in another modified place preference test where only the motivational effects of drug withdrawal were evaluated (excluding the acute effects of drug administration), the 24-hour aftereffect of 5-HT2A agonist administration also resulted in a robust place preference. Therefore, while 4-AcO-DMT administration was able to induce place preference, its 24-hour aftereffect also produced a strong reward. In the counterbalanced test, this reward from the aftereffect effectively overshadowed its acute rewarding properties, which could potentially create a false impression that 4-AcO-DMT lacks motivational properties. This suggests that 5-HT2A agonist administration follows a different dynamic than that proposed by the opponent-process theory of motivation and implies that the administration of 5-HT2A agonists may lead to behavioral patterns less typical of drugs associated with addiction.

Flash Pulmonary Oedema Secondary to Persistent Left Superior Vena Cava.

Persistent left superior vena cava (PLSVC) is a common congenital anomaly of the thoracic venous system. It is usually asymptomatic and is detected when cardiovascular imaging is performed for unrelated reasons. Its presence can complicate catheter placement within the right side of the heart, as well as cardiac procedures. In most cases PLSVC can go unnoticed and only becomes pertinent when patients require cardiac imaging or surgery. Once found, it puts patients at risk for cardiac interventions. Here we present a case that highlights the practical implications of PLSVC where a patient developed flash pulmonary oedema after gastrointestinal procedures - in this case, laparoscopic cholecystectomy - as well as endoscopic retrograde cholangiopancreatography (ERCP). Management is also discussed, leading to the resolution of symptoms. The report will also propose a pathophysiologic mechanism leading to this complication that is not well understood in the medical literature. LEARNING POINTS: Complications of gastrointestinal procedures are not studied in patients with persistent left superior vena cava syndrome.Inform the medical community of the possible pathophysiology of flash pulmonary oedema after gastrointestinal manipulation in patients with persistent left superior vena cava syndrome.

Which is the optimum parenting for adolescents with low vs. high self-efficacy? Self-concept, psychological maladjustmentand academic performance of adolescents in the Spanish context / ¿Cuál es el estilo parental óptimo para adolescentes con baja vs. alta autoeficacia? Autoconcepto, desajuste psicológico y rendimiento académico de los adolescentes en el contexto español

El objetivo de este estudio es identificar qué estilo parental se asocia con resultados óptimos entre los adolescentes de familias españolas considerando aquellos con baja vs. alta autoeficacia. Los participantes fueron 1029 adolescentes españoles, 453 varones (44%), de 12 a 17 años. Aunque los estudios clásicos identifican el estilo autorizativo (basado en el afecto y la severidad) como la mejor estrategia socializadora, las investigaciones emergentes cuestionan seriamente los beneficios de la severidad parental. Además, el impacto de la socialización parental en la competencia psicosocial del adolescente se ha estudiado durante años, pero se sabe menos sobre si podría variar en función de las características individuales del adolescente (e.g., la autoeficacia). Las familias fueron clasificadas por estilo parental (autorizativo, autoritario, indulgente o negligente), y los adolescentes por baja vs. alta autoeficacia. La competencia psicosocial se examinó a través del autoconcepto emocional y académico, el desajuste psicológico (hostilidad/agresión, autoestima negativa, irresponsividad emocional, inestabilidad emocional y visión negativa del mundo) y el rendimiento académico (nota media y número de cursos repetidos). Se comprobaron los efectos principales y de interacción de estilo parental y autoeficacia. Los resultados de los efectos principales indicaron que los adolescentes con baja autoeficacia presentaban siempre la peor competencia psicosocial. También que los adolescentes de familias indulgentes y autorizativas presentaron mejores resultados que los de familias negligentes y autoritarias. Sin embargo, el estilo parental indulgente se asoció a los mejores resultados. El impacto de la socialización parental podría no ser igual en todos los contextos culturales. Frente a los resultados de los estudios clásicos, la severidad parental parece ser innecesaria o incluso perjudicial para los adolescentes con baja y alta autoeficacia.(AU)

The aim of this paper is to establish which parenting style is as-sociated with optimum outcomes among adolescents of Spanish families considering adolescents with low vs. high self-efficacy. Although classical studies identify the authoritative parenting style (based on warmth and strictness) as the best parental strategy, emerging research seriously ques-tions the benefits of parental strictness. Additionally, the impact of parent-ing on the adolescent’s psychosocial competence has been studied for years, but less is known about whether it might vary depending on individ-ual characteristics of the adolescent (e.g., self-efficacy). Participants were 1029 Spanish adolescents, 453 males (44%), aged 12-17 years. Families were classified in one of the parenting styles groups (authoritative, authori-tarian, indulgent, or neglectful), and adolescents were grouped by low vs. high self-efficacy. Adolescent psychosocial competence was examined through emotional and academic self-concept, psychological maladjust-ment (hostility/aggression, negative self-esteem, emotional responsivity, instability, and negative view of the world), and academic performance (grade point average and number of failing grades). Main and interaction effects of parenting style and adolescent self-efficacy were tested. Main ef-fect results indicated that adolescents with low self-efficacy were always as-sociated with the worst psychosocial competence. Consistently, the main effect findings indicated that adolescents from indulgent and authoritative families were associated with better results than those from neglectful and authoritarian families. However, the indulgent parenting style yielded the best results. The impact of parenting might not be the same for adoles-cents in all cultural contexts. Contrary to findings from classical studies, parental strictness seems to be unnecessary or even detrimental for adoles-cents with low and high self-efficacy.(AU)

Untangling adaptive functioning of PMM2-CDG across age and its impact on parental stress: a cross-sectional study.

Phosphomannomutase deficiency (PMM2-CDG) leads to cerebellar atrophy with ataxia, dysmetria, and intellectual deficits. Despite advances in therapy, the cognitive and adaptive profile remains unknown. Our study explores the adaptive profile of 37 PMM2-CDG patients, examining its association with parental stress and medical characteristics. Assessment tools included ICARS for the cerebellar syndrome and NPCRS for global disease severity. Behavioral and adaptive evaluation consisted of the Vineland Adaptive Behavior Scale and the Health of the Nation Outcome Scales. Psychopathological screening involved the Child Behavior Checklist and the Symptom Check-List-90-R. Parental stress was evaluated using Parental Stress Index. Results were correlated with clinical features. No significant age or sex differences were found. 'Daily living skills' were notably affected. Patients severely affected exhibited lower adaptive skill values, as did those with lipodystrophy and inverted nipples. Greater severity in motor cerebellar syndrome, behavioral disturbances and the presence of comorbidities such as hyperactivity, autistic features and moderate-to-severe intellectual disability correlated with greater parental stress. Our study found no decline in adaptive abilities. We provide tools to assess adaptive deficits in PMM2-CDG patients, emphasizing the importance of addressing communication, daily living skills, and autonomy, and their impact on parental stress in clinical monitoring and future therapies.